CN103563949B - A kind of bactericidal composition and application thereof containing metconazole and tmtd - Google Patents
A kind of bactericidal composition and application thereof containing metconazole and tmtd Download PDFInfo
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- CN103563949B CN103563949B CN201310503419.4A CN201310503419A CN103563949B CN 103563949 B CN103563949 B CN 103563949B CN 201310503419 A CN201310503419 A CN 201310503419A CN 103563949 B CN103563949 B CN 103563949B
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Abstract
The invention discloses a kind of bactericidal composition and the application thereof that contain metconazole and tmtd.This bactericidal composition is with metconazole and tmtd for principle active component, and wherein the weight ratio of metconazole and tmtd is 1 ~ 40:1 ~ 90.This bactericidal composition can be applicable to control cereal crop and vegetables fruit diseases, there is higher synergistic function, overcome and delayed the pesticide resistance of germ, sterilization speed is fast, the lasting period is longer, reducing application cost, control efficiency is obviously better than its single dose and uses.The present invention may be used for preventing and treating the fungal disease on crops, especially may be used for the fungal diseases such as control rust, powdery mildew, leaf spot, glume blight, head blight, gray mold, downy mildew, and effect is better than single dose and uses.
Description
Technical field
The present invention relates to a kind of bactericidal composition and uses thereof, especially a kind of be main active bactericidal composition and the application thereof of metconazole and tmtd.
Background technology
Metconazole (metconazole), chemical name: 5-(4-chlorphenyl)-2,2-dimethyl-1-(1,2,4-triazol-1-yl methyl)-cyclopentanol, molecular formula: C
17h
22clN
3o, chemical structural formula is as follows:
Metconazole belongs to triazole bactericidal agent, and be C-14 demethylation enzyme inhibitor in ergosterol biosynthesis, although the mechanism of action is the same with other triazole bactericidal agents, activity is larger.Its two kinds of isomer have bactericidal activity, but Cis activity is higher than trans.Widely, activity is higher for the antifungal spectrum of metconazole, and prevention, result for the treatment of is all good.Be mainly used in control wheat septoria, fringe sickle-like bacteria, leaf rust, yellow rust, powdery mildew, glume blight, the short shape rust of barley, powdery mildew, Rhynchosporium spp．, rye Rhynchosporium spp．, leaf rust, crown hull sugar, to Septoria and rust superior activity.Have excellent protection and therapeutic action concurrently.It is very wide that disease scope is planted in the extremely low and control of dosage.
Tmtd (Thiram), chemical name: tetramethyl thiuram disulfide, molecular formula: C
6h
12n
2s
4, chemical structural formula is as follows:
Tmtd belongs to dithiocarbamate bactericide, is protective fungicide.Fungicidal spectrum is wide, to various crop as downy mildew, epidemic disease, anthracnose, Cereal smut, seedling stage yellow blight etc. have good control efficiency.Owing to having good control efficiency to the disease of seed transmission and soil infection in seedling stage, in very long one section, be mainly used in seed treatment and soil treatment, be also widely used in foliage-spray at present.Another important use is as the composite companion's medicine of systemic fungicide, namely makes mixed bactericide with multiple interior suction therapeutic agent is composite, and can be composite with other protective fungicides.Thus tmtd is widely used a kind of bactericide.
At present, along with the change of pattern of farming, disease occurrence degree, the generation quantity of melon and fruit, vegetables, cereal crop all increase, and are are objectively preventing and treating difficulty increasing; On the other hand, SM, under the medicament selection pressure continued, cause the resistance of pathogen to rise year by year, the control efficiency of single dose is had a greatly reduced quality; 3rd, the speed to introduce of current new varieties of pesticides obviously declines, and lacks new action target medicament; 4th, strict gradually due to environmental requirement, portioned product is limited to use, and causes medication selectivity to become less.In a word, how effective control plant disease is the important topic that vast plant protection work person faces.
Summary of the invention
The object of the invention is for above-mentioned technical problem provide a kind of applied widely, cost is low, the effective plant bactericidal composition containing metconazole and tmtd.
A further object of the invention is to provide the application of this bactericidal composition.
The object of the invention is to be realized by following measures:
A kind of bactericidal composition, be made up of metconazole and tmtd, wherein the weight ratio of metconazole and tmtd is 1 ~ 40:1 ~ 90, preferably 1 ~ 30:10 ~ 80, preferred 1 ~ 30:10 ~ 70 further, further preferably 5 ~ 30:10 ~ 35, particularly preferably 1:0.1 ~ 10.
A kind of bactericide, with described bactericidal composition for active ingredient, and insecticides adjuvant, excipients are mixed with any one formulation that agricultural chemicals allows.
The weight percentage of described bactericidal composition in described bactericide is 2 ~ 90%, preferably 5 ~ 80%, further preferably 10 ~ 70%, particularly preferably 10 ~ 50%.
The preferred missible oil of described formulation, suspending agent, suspension emulsion, wetting powder, aqueous emulsion, microemulsion, water dispersion granule and suspension seed-coating agent.
Described auxiliary agent has emulsifier, wetting dispersing agent, suspending agent, defoamer, disintegrant, binding agent etc.
The aforementioned emulsifier that can be applicable in insecticides adjuvant of the present invention includes, but are not limited to calcium dodecyl benzene sulfonate, the rare block compound of polyoxyethylene polyoxy third, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene polyethenoxy ether, Ben-zylphenol Polyoxyethyl Ether, phenethyl phenol polyethenoxy ether, fatty alcohol-polyoxyethylene ether, phenethyl phenol polyethenoxy ether polyethenoxy ether, alkylphenol polyoxyethylene formaldehyde condensation products etc., and the phosphate of above-mentioned wherein moieties and in and salt.Concrete kind as: agriculture breast 500# series, 600# is serial, 400# is serial, 1600# is serial, NP is serial, OP is serial, AEO is serial, By is serial, these dish series, TWEEN Series etc.
The aforementioned wetting dispersing agent that can be applicable in insecticides adjuvant of the present invention include, but are not limited in sodium lignin sulfonate, calcium lignosulfonate, alkylnaphthalene sulfonate, alkylnaphthalene sulfonate formaldehyde condensation products, Abietyl quaternary ammonium salt, alkylphenol polyoxyethylene phosphate, saponin, the withered powder of tea, fatty alcohol polyoxyethylene ether sulfate, lauryl sodium sulfate, neopelex, polycarboxylic acid salt and high molecular comb shape compound etc. one or more.
As required, also the functional aids such as antifreezing agent, thickener, stabilizing agent, defoamer can be added
Described antifreezing agent is selected from one or more of ethylene glycol, propane diols, urea, diethylene glycol (DEG), glycerine etc.
Described thickener be selected from xanthans, polyvinyl alcohol, bentonite, CMC, aluminium-magnesium silicate one or more.
It is aforementioned that to can be applicable to excipient of the present invention be one or more in water, solvent or filler.
Described solvent includes, but are not limited to one or more of toluene, dimethylbenzene, solvent naphtha series, mixed methylnaphthalene, turpentine oil, vegetable oil, methyl oleate, carrene, chloroform, methyl alcohol, ethanol, isopropyl alcohol, n-butanol, cyclohexanone, isophorone, pyrrolidones, tetrahydrofurfuryl alcohol, acetic acid dimethyl ester, acetophenone, ethyl acetate, DMF, dimethyl sulfoxide (DMSO) etc.
Described filler is selected from one or more of white carbon, kaolin, precipitated calcium carbonate, diatomite, corn starch, quartz sand, talcum powder, ammonium sulfate, sodium sulphate, sodium chloride, potassium chloride etc.
The application of described bactericidal composition in preparation control resistance plant fungal disease, the application preferably in preparation control cereal crop and economic crops rust, powdery mildew, leaf spot, glume blight, head blight, gray mold, downy mildew germ killing drugs.
The application of described bactericide on control resistance plant fungal disease, the application preferably in control cereal crop and economic crops rust, powdery mildew, leaf spot, glume blight, head blight, gray mold, downy mildew.
Beneficial effect of the present invention:
Compared with prior art beneficial effect of the present invention: (1) is compared with single dose, said composition antagonism fungal disease such as rust, powdery mildew, leaf spot, glume blight, downy mildew, epidemic disease, anthracnose etc. have obvious synergistic function, overcome and delayed pesticide resistance, expanding prevention scope, significantly improves control efficiency and lasting period; (2) control recruitment, drug cost is reduced; (3) alternative routine and the easy agricultural chemicals producing resistance; (4) compared with single dose, produce and use cost reduction; (5) the drug-fast generation of Antifungi, its control efficiency uses apparently higher than its single dose.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and in embodiment, the preparation method of formulation is conventional laboratory's formulation method.
Embodiment 1:
By metconazole 5g, tmtd 35g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO (sodium methylene bis-naphthalene sulfonate) 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 40% wetting powder.
Embodiment 2:
By metconazole 10g, tmtd 30g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 40% wetting powder.
Embodiment 3:
By metconazole 15g, tmtd 25g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 40% wetting powder.
Embodiment 4:
Take metconazole 20g, tmtd 20g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 40% wetting powder.
Embodiment 5:
Take metconazole 30g, tmtd 10g, sodium lignin sulfonate dispersant 6g, dispersing agent NNO 4g, white carbon 5g, kaolin adds to 100g mixture and carries out air-flow crushing, and obtained principle active component weight percentage is 40% wetting powder.
Embodiment 6:
Take 1g metconazole, 10g tmtd, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, solvent 13g, adds water to 100g.The method above raw material being prepared routinely aqueous emulsion drops into the mixing of mixing kettle high speed, and making principle active component weight percentage is 11% metconazole tmtd aqueous emulsion.
Embodiment 7:
Take 10g metconazole, 35g tmtd, sodium lignin sulfonate 8g, polycarboxylate salt dispersant 2g, lauryl sodium sulfate 1g, ammonium sulfate 5g, corn starch complement to 100g.The method above raw material being prepared routinely water dispersion granule first mixes, rear cross air-flow crushing, finally mediate granulation, making principle active component weight percentage is 45% metconazole tmtd water dispersion granule.
Embodiment 8:
Take 15g metconazole, 35g pyraclostrobin, sodium lignin sulfonate 8g, polycarboxylate salt dispersant 2g, lauryl sodium sulfate 1g, ammonium sulfate 5g, corn starch complement to 100g.The method above raw material being prepared routinely water dispersion granule first mixes, rear cross air-flow crushing, finally mediate granulation, making principle active component weight percentage is 50% metconazole tmtd water dispersion granule.
Embodiment 9:
Take 5g metconazole, 15g tmtd, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether phosphate 3g, agriculture breast 33#2g, alkylphenol polyoxyethylene 1g, isopropyl alcohol 10g, adds water to 100g.The method above raw material being prepared routinely microemulsion drops in mixing kettle and mixes, and making principle active component weight percentage is 20% metconazole tmtd microemulsion.
Embodiment 10:
Take 5g metconazole, 30g tmtd, calcium dodecyl benzene sulfonate 6g, phenethyl phenol polyethenoxy ether 7g, solvent naphtha are to 100g.The method above raw material being prepared routinely missible oil drops in mixing kettle and mixes, and making principle active component weight percentage is 35% metconazole tmtd missible oil.
Embodiment 11:
Take 10g metconazole, 10g tmtd, lignin 2g, polyoxyethylene poly-oxygen propylene aether and sulphate 4g thereof, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, complement to 100g with water, under the effect of sand mill, make principle active component weight percentage is 20% metconazole tmtd suspending agent.
Embodiment 12:
Take 12g metconazole, 30g tmtd, lignin 2g, polyoxyethylene poly-oxygen propylene aether and sulphate 4g thereof, xanthans 0.15g, ethylene glycol 5g, silica ethane 0.10g, aluminium-magnesium silicate 0.5g, complement to 100g with water, under the effect of sand mill, make principle active component weight percentage is 42% metconazole tmtd suspending agent.
Embodiment 13:
Take 5g metconazole, 10g tmtd, sodium lignin sulfonate 4g, polyoxyethylene poly-oxygen propylene aether 2g, xanthans 0.15g, propane diols 5g, aluminium-magnesium silicate 0.5g, complement to 100g with water, it is 15% suspension seed-coating agent that formulation method is conveniently mixed with mass percentage.
Embodiment 14
Indoor biometrics test is carried out with metconazole and the former medicine of tmtd:
Be test strain with anthracnose of tomato in indoor, adopt mycelial growth rate method, measure different agents to concentration EC in the suppression of bacterial strain
50value, adopt the abundant co-toxicity coefficient computational methods of Sun Yun, calculate the co-toxicity coefficient (CTC) of mixture, determine the building performance of mixture, computational methods are as follows:
1. with single dose a certain in mixture for standard agent (selects EC usually
50junior), calculate:
2. single dose toxicity index=standard agent EC
50/ certain single dose EC in addition
50× 100
3. toxicity index × B single dose proportion in mixture of toxicity index × A single dose proportion+B single dose in mixture of theoretical toxicity index=A single dose.
4. survey the EC of toxicity index=standard single dose
50the EC of value/mixture
50value × 100
5. co-toxicity coefficient CTC=surveys toxicity index/theoretical toxicity index × 100
The value of mixture is evaluated according to the numerical value of CTC, CTC shows that mixture has synergetic when being greater than 120, CTC shows that mixture has Antagonism when being less than 80, CTC shows that between 80-120 mixture has summation action, generally speaking, the CTC>120 of mixture is the basic demand of agriculture chemical compounding research and development.
Indoor biometrics result is as follows:
Table 1: metconazole+tmtd different ratio is to the indoor biometrics result of anthracnose of tomato
| Medicament | EC50（mg/L） | Actual measurement toxicity index | Theoretical coefficient | Co-toxicity coefficient (CTC) |
| Metconazole (A) | 1.57 | 100 | - | |
| Tmtd (B) | 47.23 | 3.32 | - | |
| A:B=1:7 | 1.04 | 150.96 | 91.21 | 166 |
| A:B=1:3 | 1.38 | 113.77 | 83.89 | 136 |
| A:B=3:5 | 1.44 | 109.03 | 75.83 | 144 |
| A:B=1:1 | 2.11 | 74.408 | 51.66 | 144 |
| A:B=3:1 | 4.77 | 32.914 | 22.66 | 145 |
Result of the test illustrates, metconazole and tmtd is composite prevents and treats anthracnose of tomato, in said ratio, all have synergistic effect.
Field control effectiveness test:
Indoor biometrics shows good Pesticidal composition, actual field medicine effect test must be carried out, field medicine effect test is the important means that whether final evaluation Pesticidal composition has using value under the impact of field integrated environment, therefore, the field medicine effect test preventing and treating anthracnose of tomato has been carried out with the pesticide mixed preparation that embodiment obtains in the basis of indoor biometrics.
The preparation testing middle different proportioning obtained according to raw test carries out the test of pesticide effectiveness, and contrast medicament is 60g/L metconazole aqueous emulsion and 75% thiram wettable powder respectively.Each plot area is 66.7m
2, repeat 3 times; Inspection drug effect method before dispenser after Investigation and Prevention is: in test treatment region, adopt accidental sampling, sample 5 points, 0.5 square metre often, check anthracnose of tomato occurrence degree.
Table 2: metconazole+tmtd different ratio is to the field control effectiveness test of anthracnose of tomato:
Shown by the result of indoor biometrics and field medicine effect test, metconazole and tmtd composition have obvious synergistic function, and the control efficiency of composition is excellent, and control efficiency is all better than single dose kind, in agricultural application, have good using value.
Claims (7)
1. a bactericidal composition, it is characterized in that being made up of metconazole and tmtd, wherein the weight ratio of metconazole and tmtd is 1:7.
2. a bactericide, is characterized in that with bactericidal composition according to claim 1 for active ingredient, and insecticides adjuvant, excipients are mixed with any one formulation that agricultural chemicals allows.
3. bactericide according to claim 2, is characterized in that the weight percentage of described bactericidal composition in described bactericide is 10 ~ 50%.
4. bactericide according to claim 2, it is characterized in that described auxiliary agent is selected from emulsifier, wetting dispersing agent, suspending agent, defoamer, disintegrant, binding agent, antifreezing agent, thickener, stabilizing agent, defoamer one or more, described excipient be selected from solvent or filler one or more.
5. bactericide according to claim 3, is characterized in that described formulation is missible oil, suspending agent, suspension emulsion, wetting powder, aqueous emulsion, microemulsion, water dispersion granule.
6. bactericidal composition according to claim 1 is preparing the application prevented and treated in the medicine of anthracnose of tomato.
7. the application in anthracnose of tomato prevented and treated by bactericide according to claim 2.
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| CN103975936B (en) * | 2014-05-15 | 2016-07-06 | 南京南农农药科技发展有限公司 | A kind of synergy fungicide composite and its preparation method and application |
| CN105076121A (en) * | 2014-05-20 | 2015-11-25 | 上海是大高分子材料有限公司 | Thiram suspending agent and preparation method thereof |
| CN105724393B (en) * | 2016-04-07 | 2018-06-05 | 陕西上格之路生物科学有限公司 | Application of the bactericidal composition containing metconazole in prevention wheat scab |
| CN107212012A (en) * | 2017-06-29 | 2017-09-29 | 广西南宁黑泥巴农业科技有限公司 | A kind of paddy rice bactericidal composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1994085A (en) * | 2006-01-06 | 2007-07-11 | 河北省农林科学院植物保护研究所 | A compound bactericide for controlling plant powdery mildew |
| CN103190423A (en) * | 2013-04-02 | 2013-07-10 | 南京南农农药科技发展有限公司 | Bactericidal composition containing triazole and thiram |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1994085A (en) * | 2006-01-06 | 2007-07-11 | 河北省农林科学院植物保护研究所 | A compound bactericide for controlling plant powdery mildew |
| CN103190423A (en) * | 2013-04-02 | 2013-07-10 | 南京南农农药科技发展有限公司 | Bactericidal composition containing triazole and thiram |
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Denomination of invention: Bactericidal composition containing metconazole and thiram and application thereof Effective date of registration: 20191012 Granted publication date: 20160120 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd Pledgor: JIANGSU FENGDENG CROP SCIENCE CO., LTD. Registration number: Y2019320010015 |
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